JPS5848103Y2 - Pipe peripheral surface cutting device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an apparatus for cutting circumferential grooves or the like on the outer peripheral surface of a synthetic resin pipe or other pipe.

When connecting pipes such as synthetic resin pipes, it is necessary to cut a groove on the outer periphery of the pipe in order to attach a backing or engage a detachment prevention ring used to prevent the pipe from detaching from the connection. arise.

In view of the above points, this invention was made with the aim of providing a cutting device that can be easily used at pipe construction sites. It consists of a guide tube for guiding the electrolytic copper in the circumferential direction of the pipe, and a guide plate is provided on each of the front base and rear base of the electrolytic copper so as to be movable back and forth in the direction of the rotary blade, and is curved on the side of the electrolytic copper. The pipe peripheral surface cutting device is provided with a plate having a curved guide edge, and the curved guide edge of the plate is guided in a circumferential guide groove provided on the outer circumferential surface of the guide tube.

Next, the pipe peripheral surface cutting device of this invention will be explained with reference to the embodiments shown in the drawings.

1 electrolytic copper, and the front base 11 of this electrolytic copper 1
Guide plates 2 and 3 are attached to each of the rear bases 12 so as to be removable and movable back and forth in the direction of the rotary blade 4.

5 is a plate having a curved guide edge 51 and is attached to the side surface of the electrolytic copper 1.

6 is wrapped around the outer circumferential surface of the pipe 7 to attach the electrolytic copper 1 to the pipe 7.
It is a guide tube for guiding in the circumferential direction of the pipe 7, and has a structure in which the half tubes are joined with a hinge and the other side part can be fastened with bolts and nuts, etc., so that it can be easily installed and detached at a predetermined location of the pipe 7. It has become.

A groove 61 of a constant width is bored along the circumferential direction on the outer periphery of the guide cylinder 6.

This groove 61 is a guide groove for guiding the curved guide edge 51 of the plate 5 attached to the electrolytic copper 1.

The rotary blade 4 in this embodiment includes a groove cutting blade part 41 for cutting grooves on the outer peripheral surface of the pipe 7, and a chamfer forming blade part 42.
It is said to have a shape consisting of.

Reference numerals 13 and 14 are regulating plates for regulating the cutting depth of the rotary blade 4, 15 is a knob for vertically finely adjusting the front base 11, and 16 is a handle.

Next, how this device is used will be explained.

First, the guide tube 6 is attached to a predetermined location on the pipe 7 to be cut.

As mentioned above, the guide tube 6 can be opened with a hinge, so it can be easily attached to the pipe 7 by opening the guide tube 6, applying it to a predetermined location on the pipe 7, and fastening it with bolts and nuts. It is removed from the pipe 7 by loosening the nut.

The electric plane 1 is set on the pipe tube 7 by fitting the curved guide edge 51 of the electric plane 1 into the guide groove 61 of the guide tube 6 attached to the pipe 7 in this manner.

At this time, it goes without saying that the rotary blade 4 should hit the vertical surface of the pipe 7 instead of the vertical surface of the guide tube 6.
Adjust the position of the guide plate 2°3 according to the outer diameter of the pipe 7,
Each guide portion 21.31 is made to contact the outer peripheral surface of the pipe 7.

Rotate the rotary blade 4 of the electric plane 1, hold the gunner 16, and move the electric plane 1 through the curved guide edge 51 of the electric plane 1 into the guide groove 61 of the guide tube 6.
The pipe 7 is cut by rotating along the same direction.

Thus, as shown in FIG. 3, the groove 71 cut by the groove cutting blade 41 on the outer periphery of the pipe 7 and the chamfer forming blade 4
The chamfered portion 72 cut in step 2 is cut.

Thereafter, when the chamfered portion 72 is cut with the cutter 8, the end portion is chamfered to form a pipe inlet with a groove 71, which can be used for connecting a pipe.

Note that the chamfer forming blade 42 may cut the end of the pipe 7 in advance.

As described above, the pipe peripheral surface cutting device of this invention uses an electric planer, has a guide plate on its base surface that can be adjusted according to the diameter of the pipe, and also has a plate body with a curved guide edge attached to the side. This curved guide edge is guided by a guide groove provided on the outer circumferential surface of a guide tube that is separately attached to the pipe, so that the electric planer can stably and reliably move along the circumferential direction. It can be rotated by hand, and desired grooves etc. can be easily cut even at the piping site.

[Brief explanation of drawings]

Figure 1A is a perspective view showing an embodiment of the pipe outer peripheral surface cutting device devised by Machiyo, Figure 2 is a perspective view showing how the device shown in Figure 1 is used, and Figure 3 is a perspective view showing how the device in Figure 1 is used to cut the outer peripheral surface of a pipe. FIG. 3 is a partially cutaway front view showing the pipe. 1... Electric planer, 2, 3... Information board, 4
...Rotary blade, 51...Curved guide edge,
6... Guide cylinder, 61... Guide groove.

Claims (1)

[Scope of utility model registration request] Consists of electrolytic copper and a guide cylinder attached to the outer periphery of the pipe to guide the electrolytic copper in the circumferential direction of the pipe, and guide plates on each of the front base and rear base of the electrolytic copper can be moved back and forth in the direction of the rotary blade. A plate body having a curved guide edge is provided on the side of the electrolytic copper, and the curved guide edge of the plate body is guided in a circumferential guide groove provided on the outer periphery of the guide tube. Pipe circumferential cutting device.